What the boy said sounds .A. reasonB. reasonableC. reasonablyD. Reasoning

问题补充：

What the boy said sounds .

A. reason

B. reasonable

C. reasonably

D. Reasoning

答案：

A. reason

(答案→)B. reasonable

C. reasonably

D. Reasoning

解析：句意：这个男孩说的很有道理。Sound为联系动词，后面常用形容词做表语，故选B。